mk216v
Der Chef der Fahrzeuge
FR just got back to me, saying they don't have the tank for petrol G and they don't consider developing it. Too bad.
Lame. That leaves ORC in Germany as the only one I know which offers an aux tank..at the cost of ~$3000!
Thor at Viking Offroad called me today. He estimated that the tank would be only for the W460/461 (euro) diesels, no gas as they aren't as popular in S.A.